//
// Settings.cs
//
// Authors:
//	Joel Reed (joelwreed@gmail.com)
//

//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml;
using Microsoft.TeamFoundation.Client;
using Microsoft.TeamFoundation.VersionControl.Common;
using Microsoft.TeamFoundation.VersionControl.Client;

public class Settings : SortedList<string, string>
{
	private readonly string ConfigFile = "TfClient.config";
	private bool initialized = false;
	private static Settings current = new Settings();

	public static Settings Current
   {
		 get { return current; }
	 }

	private Settings()
		{
		}

	private void InitializeAsNeeded()
	{
		if (initialized) return;
		
		Add("Checkin.Validate", "false");
		Add("Checkout.Latest", "false");
		Add("Credentials.Save", "false");
		Add("File.Excludes", "");
		Add("File.ReadWrite", "false");
		Add("Get.Recursive", "false");
		Add("History.DefaultToCwd", "false");
		Add("History.Detailed", "false");
		Add("History.Recursive", "false");
		Add("History.StopAfter", "256");
		Add("Online.Recursive", "false");

		initialized = true;

		string configFilePath = GetConfigPath();
		if (!File.Exists(configFilePath)) return;

		using (XmlTextReader reader = new XmlTextReader(configFilePath))
			{
				while (reader.Read())
					{
						if (reader.NodeType == XmlNodeType.Element && reader.Name == "add")
							{
								string key = reader.GetAttribute("key");
								string value = reader.GetAttribute("value");
								this[key] = value;
							}
					}
			}
	}

	public string GetConfigPath()
	{
		return Path.Combine(TeamFoundationServer.ClientSettingsDirectory, ConfigFile); 
	}

	public void Save()
	{
		InitializeAsNeeded();

		XmlDocument doc = new XmlDocument();

		XmlElement root = doc.CreateElement("configuration");
		doc.AppendChild(root);

		XmlElement appSettings = doc.CreateElement("appSettings");
		root.AppendChild(appSettings);

		foreach (string key in Keys)
			{
				XmlElement add = doc.CreateElement("add");
				add.SetAttributeNode("key", "").Value = key;
				add.SetAttributeNode("value", "").Value = this[key];
				appSettings.AppendChild(add);
			}

		string configFilePath = Path.Combine(TeamFoundationServer.ClientSettingsDirectory, ConfigFile);
		using (XmlTextWriter writer = new XmlTextWriter(configFilePath, null))
			{
				writer.Formatting = Formatting.Indented;
				doc.Save(writer);			
			}
	}

	public string Get(string key)
	{
		InitializeAsNeeded();

		string value = String.Empty;
		TryGetValue(key, out value);

		return value;
	}

	public bool GetAsBool(string key)
	{
		InitializeAsNeeded();

		string value = String.Empty;
		if (TryGetValue(key, out value))
			{
				return Convert.ToBoolean(value);
			}

		return false;
	}

	public int GetAsInt(string key)
	{
		InitializeAsNeeded();

		string value = String.Empty;
		if (TryGetValue(key, out value))
			{
				return Convert.ToInt32(value);
			}

		return -1;
	}
}

